I have 2 sites (A and B), and I must call a script on site B from site A, get the results on A, and display them.

I wrote a script (on site A) that I call with a POST method from a form on a page on the same site.
This script receives the arguments, calls the script on site B, receives the answer, and displays it.
The call of the script on B works, but the arguments sent to it are never received.
So it's useless!!